None But, 80 x 2 = 160 and 80 + 2 = 82, are you sure you mean 92?
Answer:
I think it's C a triangular pyramid.
Answer:
15cm
Step-by-step explanation:
First, a square's diagonal is basically the hypotenuse of a 45-45-90 triangle. a 45-45-90 triangle has a really special relationship, where the side length is x, and the diagonal is x
. So, the side length is 15.
I think the answer is option 3.